Effects of filament arrangement and wire geometry on the AC losses in Bi(2223) tapes

Author

Dhalle, M. ; Polcari, A. ; Marti, F. ; Huang, Y.B. ; Witz, G. ; Flukiger, R.

Author_Institution

Dept. de Phys. de la Matiere Condensee, Geneva Univ., Switzerland

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

782

Lastpage

784

Abstract

AC losses in multi-filamentary tapes depend on various parameters. Among them, geometrical factors such as overall tape width and thickness as well as the precise arrangement of the filaments are expected to have an important influence. Several theoretical models describe this dependency. In order to study these geometrical effects experimentally, we prepared a series of Bi(2223)/Ag tapes with gradually changing filament arrangements and tape aspect ratio, and characterized them by AC transport and magnetic measurements. The results are compared to model predictions.

Keywords

bismuth compounds; calcium compounds; high-temperature superconductors; loss measurement; magnetic variables measurement; multifilamentary superconductors; silver; strontium compounds; superconducting tapes; AC losses; AC transport measurement; Bi(2223) tapes; Bi(2223)/Ag tapes; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O-Ag; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O-Ag tapes; filament arrangement; geometrical factors; gradually changing filament arrangements; magnetic measurement; multi-filamentary tapes; tape aspect ratio; wire geometry; Current measurement; Geometry; Loss measurement; Magnetic field measurement; Magnetic variables measurement; Multifilamentary superconductors; Predictive models; Shape control; Voltage; Wire;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783411

Filename

783411